Table Saw–You Need to Know 7 Tips for Cutting Metal on Table Saw

A table Saw

Table saws are classic. Famous for its simplicity and effectiveness, it is the perfect tool for cutting. Hitherto, the table saw has mostly been in use for cutting wood. Beyond its fame for cutting wood, most people now question if the table saw will be able to cut metal. Well, lucky for you, our team has done an excellent job of using the table saw for metal cutting. Here are the most useful tips you need to know about the process.

A table Saw

Figure 1: A table Saw

1.Table Saw — Match Blade to Metal

In using the table saw to cut metal, the type of blade you use is important. Having the right blade enables you to cut through any metal. It means that if you are planning to do any form of cutting on the table saw, you must know the right blade to use.

Bear in mind that there are two classes of metal, namely the Ferrous and Non-Ferrous metal. Ferrous metals are metals that contain iron in their structural composition. Ferrous metal often mandates that you also have a ferrous metal cutting blade to ensure a proper cut. An example of ferrous metal is steel, which is popular for its ability to make reinforcement and other high strength metal.

Non-ferrous metals, on the other hand, have a softer matrix, and that makes them easier to cut. So most ferrous metal cutting blades can cut to ferrous metal, examples of non-ferrous metals are copper and aluminum.

2.Table Saw — Cutting Speed

Cutting speed or feed rate of the metal to the table saw is also an essential factor to consider. Know that as the speed of the table saw is increased, the faster the rate of the blade wear. Beyond this, however, you can also have changes in chip geometry, tool, and surface finish. Therefore, for the different metals you are cutting, you must know the recommended feed rate that will ensure longer service life for the blade of the table saw.

So, therefore, it is crucial to know your values for cutting speeds and feeds as this will serve a reference point start cutting your metal. An excellent way to ensure you have the correct cutting speed is to try cutting on metal scrap.

In the end, a crucial factor when setting cutting speed is the time it takes to dull a tool. You must always have an economic standpoint. Sometimes it is better to run at faster speeds and have to replace your tools more, and sometimes the reverse is the case. So select your starting speed, adjust it to the nature of the work to be done.

3.Table Saw — Types of metal

Cutting metal on your table saw can sometimes be a bit more complicated than you think. It is because you may have to cut different types of metals with varying characteristics of strength. Hence, you must have a good knowledge of the kind of metal you are cutting. Below are few metals with a brief description of their material properties:


Steel is an iron derivative produced by adding carbon to pure iron. The reason for this hybridization is because iron is not resistant to corrosion. Carbon added to iron augments the corrosive property of iron.

This blends of iron and carbon up as far as possible are known as carbon steel. Adding carbon to the press makes the iron a lot more grounded alongside giving the compound improved qualities like hardness and resistance to heat. It also makes the steel harder to cut, hence you must have the right blade with the proper feed to cut.


Aluminum is famous for its unique properties of strength, lightweight, electrical conductivity, and capacity to frame amalgams with most metals. Another thing worth noting is the fact that because of these properties, aluminum is easier to cut compared to steel.


Titanium is a rare and costly metal. With superior engineering characteristics in strength and weight, Titanium is the engineer’s dream metal. These rare, unusual properties make the Titanium useful in advanced applications like in the aerospace industry. However, you must know that this material is not very easy to cut due to its hardness. If you ever find yourself having to cut this metal with a table saw, you will need to put a lot of things into consideration.

4.Safety Tips for Working with Metal

Cutting metal can be delightful as well as disastrous when you fail to put certain safety factors into consideration. Let’s agree that if you are unskilled and want to start cutting metal with your table saw, you might get some cuts, which is perfectly normal. However, these injuries can quickly escalate if you miss a step when cutting with your table saw. So here is a list of safety factors you must consider before cutting with your table saw:

i. Do not run your fingers through freshly cut metal.

ii. You must understand that metal cutting takes time and diligence. So you must never rush through cutting the metal and creating burrs along the cut line.

iii. If you are new to metal cutting, you should try to get protective gloves to prevent any minor and unnecessary cut.

iv. Wearing goggles too can be quite helpful if you have a kickback flying back at you.

Saw Blade cutting hand
Figure 2: Saw Blade cutting hand

5.Fence Adjustment

Table saws more often than not come with a fence. This fence is the equipment that keeps your metal in line when you are feeding it through a table saw. The table fence adjustment is to ensure you have an accurate cut, as sometimes the metal can veer off course.
The first thing to do when cutting is to ensure is that your fence is smooth so that it prevents your metal from catching. A proper fence adjustment will save you from second-guessing the accuracy of your cut. So a fundamental way to have a secure and accurate cut is to have your fence safe and in a rigid position.

Table Saw Fence

Figure 3: Table Saw Fence

6.Setting the Blade Height

There are different opinions by different professionals on how blade height should place. The first thing is to set the blade only slightly higher than the top of the metal. With the blade height slightly higher than the metal, you can have cases of a kickback as the table saw teeth rips through the metal.

The kickbacks occur more often also because the blade of the table saw meets the metal horizontally. This method is particularly popular among professionals who don’t care about tear-outs on the metal.

Another popular opinion is to how to have the blade above the metal. Unlike the previous opinion, this method will cause lesser tear-out on the bottom of the metal workpiece. This method, however, is a bit dangerous because any slip from you will expose you to serious injuries from the blade.

Saw blade above metal
Figure 4: Saw blade above metal

7.Cut-Off Block

As you will see, as you attempt to cut metal directly against a rip fence, you will have more kickbacks. These kickbacks occur when the blade pinches your set board in between your fence and the blade. The blade gives off some particles that travel back right at you, and these kickbacks can sometimes be very dangerous.

Some manufacturers have put this problem into perspective and have come up with a solution. This solution is the Cut-Off Block. You need to clamp your block to the side of your fence at a reasonable distance from your blade. Do this, and you will stop all kickbacks.

Cut off Blocks

Figure 5: Cut off Blocks


The table saw is a cutting tool in wide use for different applications, and this is with good reason as it is effective and economical. More particularly in recent years, they have also been used to cut metals, which is completely different from the well-known modern wood. This article provides you with various tips on how to choose your table saw to cut metal.

So, as you continue to look out for a better understanding of how to use your table saw to cut metal, look no further, NCCuttingtools has got you covered. Click here for a video with up-to-date information about your table saw, and how to use it effectively for cutting steel.

HSS Tools or Carbide Tools: 6 Things You Should Know

A circular saw blade with carbide tip

HSS tools and Carbide tools are pretty much essential tools in the cutting industry. There are several things to know when you want to make a choice. HSS tools are high-speed steel tools. They are tough and have a high working hardness. Cemented carbide tools are more challenging, which is why they have an appreciable lifespan more than HSS tools. The characteristics of these tools lead to them being perfect for certain applications.

This article would expose you to things you should know about the HSS tools and Carbide tools. It would help you in making a great choice according to your task.(Video presentation)

A circular saw blade with carbide tip

Figure : A circularmaterial with carbide tip

6 Things You Should Know


In the production of HSS tools, several elements are present. These elements have varying composition percentages. The most important is carbon; it is present in around 1-4% of the weight. This carbon combines with one or two alloys to give the HSS tools. Depending on the type of HSS, these alloys could be different. It is from this combination that the HSS gets its toughness characteristic. Tungsten and molybdenum are the most important of these alloy elements. About 10% of their addition increases the hardness and toughness of the HSS tools. It also helps to maintain those characteristics when cutting with those tools at high temperatures. Other popfavouriteements include vanadium, chromium, and even cobalt.

However, cobalt increases the strength of the tools and wear resistance. It is why it is often added when manufacturers are producing HSS tools for high-end drilling applications. Carbide to means the other hand has different compositions. Although carbon is present, it requires other types of alloys. The stability carbide tools have dependent on the presence of these alloys/elements. These elements are usually less electronegative than carbon. These carbide tools could be metal carbide or non-metal carbide. The metal carbide would be carbon with Cobalt, Tungsten, Vanadium, Titanium. The non-metal carbide would be carbon with boron, silicon. With these elements, carbide tools are exttoughd resistant to high temperatures. The best and com typical the lot is the tungsten carbide tools. They maxmaximisetting speed with the feed rate. It is why, when in comparison with the HSS tool, carbide tools have a longer lifespan.

Hss tools with the chromium element
Figure 1:Hss tools with the chromium element

Carbide square plate with the tungsten alloy component
Figure 2: Carbide square plate with the tungsten alloy component

2.Cuttin Speed and Feed Rate:

Cutting speed is the difference in speed between the cutting tool and the surface of the material you are working on. Base on the composition of these tools, HSS tools cannot compare to carbide tools in terms of cutting speed. On average, carbide tools are 5 to 12 times faster than HSS tools. This estimation could change depending on the material you are cutting. The cutting components of the carbide tools have attributes that make them usable and fast for cutting.

The cutting speed of these tools is responsible for the heat that generates on the edges of these tools. You might be wondering about the benefits of high speed. One of the benefiadvantagesat it extends your tool lifespan.Carbide tools have an extended lifespan because while cutting the right material at high speed, they reduce tool wear. After all, high cutting speed minimiminimisesng force. Feed rate, on the other hand, is the distance the tool travels during a single spindle revolution.

It determines the rate the HSS tools and carbide tools remove materials and also their finishing. The material you are cutting, the depth of the cut/drilling, the size determines the feed rate. The feed rate of HSS tools is considerably lower than that of t he carbide tools. It also explains why carbide tools have a longer lifespan than HSS tools. It is because a high feed rate neutraneutralisesffect of chip thinning. It increases productivity while preventing rubbing, which reduces the lifespan of cutting tools.

A circularmaterial with carbide tip
Figure 3: A circularmaterial with carbide tip


If your interest is in HSS tools or carbide tools drilling tools, it is best to understand how they work. HSS drilling tools have various uses. These uses range from handheld applications to short period CNC machining. It is due to their low cost and toughness. They are the best drilling option for applications with less rigidity. These applications include handheld drilling, stack drilling, and even for deep hole drilling where coolant supply is not present. Carbide drilling tools, on the other hand, are put to use during high volume end production. They are the best and fastest tools to use when you want to drill holes in metals. It is because they have a higher cutting speed and feed rate.

HSS and carbide types of drill bits
Figure 4: HSS and carbide types of drill bits


Machinability is the ease with which you cut/drill materials at a low cost. Another essential thing to know is the machinability of these tools. Some HSS tools have low machinability. They are sound tools, and basic methods cannot make them machineable. It is due to their high carbon content. The best carbon content to achieve high machinability is around 0.2%. In addition to this, the metal alloys like molybdenum, chromium present in the HSS tools also decreases machinability.

Similarly to the HSS tools, carbide tools have considerably low machinability. It is due to the presence of tungsten, which abrades the cutting tools. However, machinability between the two types of tools is not measurable. It is because many factors affect the machinability of tools. The usual way to access this characteristic is to compare common metrics like tool life, surface finish, etc.

5.Heat Resistance and Rigidity:

HSS tools and carbide tools have excellent resistance to higher temperatures. However, they differ slightly according to their composition. With this characteristic, they can maintain their shape and sizes under compression. HSS tools have moderate resistance to heat deformation. It depends on the coating of the HSS tools. The usual film for HSS tools is Nitride hard coating. It goes a long way in ensuring the tools could maintain its shape under high operating temperatures.

Carbide tools have high resistance to high temperatures. Unlike the HSS tools which have Nitride coating, carbide tools have Nitride hard coating small quantities of tantalum.Tantalum can withstand almost 4000 degrees Celsius. It is easy to detect its importance in carbide tools. It explains their high-temperature resistance. It is essential because carbide tools generate high temperatures during operations because they have high cutting speed.

Rigidity, on the other hand, is the level of hard materials the tools can cut. The rigidity of the carbide tools is greater than the HSS tools. This edge increases the productivity of the tools. Unlike the HSS tools, carbide tools can grind through tough materials for a more extended period without wearing out. HSS tools, too, could grind through hard materials but to an extent.

A carbide tool cutting metal
Figure 5: A carbide tool cutting metal

6.Lifespan and Cost:

With the things we have read so far about HSS tools and carbide tools, we must point out their lifespan and cost. Although, with what you’ve read, it is quite easy to understand our choices. For all HSS tools do, they wear out before carbide tools. However, it is essential to know this claim isn’t permanent. Still, it is an estimation of how long they can maintain perfect shape while using them on standard materials. Carbide tools have a longer lifespan because they operate at a faster speed, have right heat resistance, and improve surface finishing. Another sound reason is due to the presa ence of cobalt in carbide tools.

The cobalt catalyzes by holding on the components of the carbide tools together. The HSS tools can also do this, but to a lesser extent. Since carbide tools have their sizes longer for premium quality, they cost more than HSS tools. However, if you are on a budget, HSS tools would still give excellent results if you use them according to manufacturers’ recommendations.

However, this article is not a description to say which tool is better than which. You can make a choice base on facts and features. Whichever you buy, you will enjoy good results if you put it to use under standard conditions.


HSS tools and carbide tools have shown to be significant with their composition, strength, machinability, and heat resistance features. These features enable them to have a longer lifespan. In terms of quality, there is not much difference between the two types of tools. However, carbide tools differ slightly in heat resistance, which leads to their long lifespan and higher cost than HSS tools.

For your quality HSS and carbide , we at NCcuttingTools, have extensive experience in providing it to meet your expectations. We use our advanced technology to provide you with scientific innovations by creating and providing you with the HSS and carbide tools for your cutting operations. Contact us for more information and let us do business together.

5 Tips for Selecting Hollow Core Diamond Drill Bits

Diamond drill bits

Hollow-core diamond drill bits are quite handy when it comes to making holes in hard surfaces such as porcelain, marble, granite, glass. Diamond drill bits derive their extra drill power from the embedded pieces of diamonds.

Users should also know the subtle disparities between diamond drills and hollow-core diamond drill bit types, their uses, and how they affect performances.

In this article, we will be discussing some tips as regards selecting hollow core diamond drill bits.

Diamond drill bits
Figure 1 – Diamond drill bits

How to select your hollow core diamond drills

Purchasing the wrong diamond drill bit can be quite a costly mistake as you’d incur needless expenses. The tips we will be reviewing can also double as a buying guide to help you make the right selection –

1.Choosing a diamond drill bit that suits your material

The material or materials you are planning to drill plays a significant role as regards selecting a hollow core diamond drill bit. This sole factor goes a long way in deciding the equipment and accessories you will be able to use. Drilling ultra-hard materials like alumina, sapphire, metallic materials, hard ceramic materials, or other precious and natural stones, will require you to use a sintered diamond drill bit (metal bonded).

On the other hand, if you intend to drill subtle and less-expensive materials such as soft stones, tile, glass, composites, and the likes, then an electroplated diamond drill (nickel bonded) can be quite handy in this regard. As a good rule of thumb, harder materials tend to require a softer bond, while softer materials do well with harder bonds as it makes them last longer.

You should also consider the expensiveness of the material in question. If you’re looking to drill an expensive material, then your diamond drill bit will play an essential role in your drilling operation. In this regard, expert masons advise that you obtain a thin wall diamond core drill as it reduces material loss and deformation.

A drilling machine drilling a hole
Figure 2 – A drilling machine drilling a hole

2.Select a diamond drill bit that can serve you for long

The life of your hollow core diamond drill bits depends on a host of factors – lubricant, speed, pressure, and the density of your material. However, we may not know the material you’re planning to drill, but we know that electroplated diamond drill bits won’t perform well in this regard. Yes, they may cost less, but they are likely to cost you more in the long run, and we will tell you why.

Depending on your application and materials, metal bonded diamond drills will outlast 15 electroplated diamond drills put together. Instead of switching your diamond core drills on and off, metal bonded drills allow you to save time and money by using a single drill.

Plus, electroplated diamond drills tend to have a single layer of diamond coated on a metal core, which allows the diamond to sit on the surface. If the diamond-coated partially is worn, the diamond drill starts lagging, start drilling to the side and not straight, or would probably stop working totally.

On the other hand, metal-bonded core diamond drills have pieces of sintered diamonds and multiple layers of diamonds inside the metal matrix. With this, the metal-bonded core diamond drills wear evenly. It also makes them dependable.

A cordless screwdriver
Figure 3 – A cordless screwdriver

3.Purchasing a multifunctional drill bit

Most handymen or masons with little budget tend to purchase a hollow core diamond drill bit that they can use on a variety of materials. It is advisable, especially when you aren’t able to purchase different tools such as diamond drill bits for glass or diamond drill bits for stones. However, you should understand that if you’re looking to get a universal drill, you are likely to incur more expenses in the long run as your drill bit might wear faster due to constant use.

In this regard, we recommend that you purchase a universal drill bit from a trusted manufacturer so it can serve you longer.

4.All diamond drills don’t come with similar tips

You can use diamond drills to drill holes, but these holes tend to differ. Invariably, this indicates that diamond drills come with different tips/bits. We will be looking at the common bits most diamond drills are likely to come with –

Different drill bits/tips 
Figure 4 – Different drill bits/tips

  • High-Speed Drill Bits

As the name suggests, this drill bit happens to operate at high speed. However, anyone with a drill bit will undoubtedly have a high-speed drill. This drill has a twisty piece that takes the shape of corkscrew pasta. You can use high-speed drills for basic drilling applications such as making small holes in walls, wood, plastic, and the likes.

  • Brad Point Bits

Brad-point drills have a reputation for being hyper-precise. Also, they allow you to make clean holes as they come with rubber stoppers that ensure that you don’t drill deeper holes than you want to. Due to their high precision factor, masons use them for woodworks.

  • Masonry Bits

As you might have guessed, masonry bits do well for masonry jobs. They come with optimized tips you can use to work on hard materials like concrete, stone, brick, and the likes. Due to their usages, masonry bits don’t last quite long, why? Well, it is because the process of drilling into a hard material like brick or concrete can generate so much heat, which can cause the tips to melt.

The volatile nature of masonry drilling demands that you follow a specific recourse for safety reasons. You should also be wary of your RPM output, and don’t forget to regularly lift the drill from the material to lessen the risk of overheating.

  • Rivet Bits

You can refer to rivet bits as a hyper-specialized tool accessory. You can use them to drill short rivets in thin sheets of metal. Rivet bits have limited functions. However, if you need one, then you can’t help but get one.

  • Spade Bits

Spade bits don’t make the best of holes, but you will find them handy. You can use spade bits to drill rough holes in softwoods, which is almost the only material you can use. The primary function of Spade bits is to facilitate running cables.

5.The speed factor

Speed is one of the crucial factors to consider when selecting or purchasing a hollow core diamond drill. You can determine the speed of a diamond drill by the RPM output, check the product manual for this. You should also understand that your working speed is entirely dependent on the material in question. Some materials don’t perform well with speed, especially tempered glass and other delicate objects. In this regard, you should endeavor to set your RPM output according to the hardness of the material you’re drilling.
Where can you get quality tools?

If you’re a handyman or mason looking to improve your work life as regards quality tools and convenience, we recommend that you patronize NC Cutting Tools for your quality tools. NC Cutting Tools manufactures a wide array of diamond cutting tools that you can rely on for your work activities. On the good side, these tools usually stand the test of time as you can use them multi-functionally on a variety of materials.

Frequent Asked Questions

  • What are the available hollow core diamond drills?

There are numerous diamond drills available on the market. Each hollow core diamond drill available is specific to a particular material. We have diamond drill bits for metal, diamond drill bits for stone, diamond drill bits for glass, and the likes. If you wish to know more about the available diamond drill bits on the market, kindly visit NC Cutting Tools.

  • What materials can you drill with hollow core diamond drills?

Hollow-core diamond drills come in a range of varieties, which means that you can use them on a vast range of materials. Regardless of your material, you can easily purchase a hollow core diamond drill for any specific material at NC Cutting Tools.

  • Where can I get the best hollow core diamond drills?

You can get the best hollow core diamond drill at NC Cutting Tools. NC Cutting Tools have a reputation for manufacturing the best diamond drill bits, as well as other diamond cutting tools, on the market.

Drilling a tiled wall
Figure 5 – Drilling a tiled wall

Final thoughts

Endeavour to employ the tips above when purchasing or choosing a hollow core diamond drill bit as they will keep you from incurring needless expenses. However, if you wish to be sure you’re on track as regards tool selection, then we recommend that you purchase your hollow core diamond drill bits from NC Cutting Tools as you will be in safe and expert hands.
Visit NC Cutting Tools to learn more about quality, hollow core diamond tools.

6 Tips for Choosing a Granite Drill Bit for Your Project

Different granite slabs

The granite drill bit is one of the indispensable tools in the diamond manufacturing industry. Also, if you specialize in drilling granite, one crucial aspect your drilling you can’t overlook is your choice of a granite drill bit. In this same vein, this article will be unravelling some vital tips as regards selecting your bit or bits for drilling granite.

These tips span across the different types of granite as regards levels, the two significant types of drilling, the long-term and speed factor, and the manufacturers you should look to for quality drill bits.

Different granite slabs
Figure 1 – Different granite slabs

1.Understand that there are different types of granite

We won’t be concerning ourselves with the colours as we will be analyzing the different grades of granites. Granites come in three categories –

• Low-Grade Granite 

Level 1: This is a commercial grade or builder’s grade granite. This type of granite is usually thinner, about 3/8 inch. Builders use it for remodelling and building apartments as it features a simple design. In this regard, you can conveniently use an electroplated (nickel bonded) diamond core drill as most of the works you will be doing will involve simple drilling. Plus, the granite is usually thin, which allows you to drill it seamlessly.

• Mid-Grade Granite 

Level 2: The mid-grade granite is a more expensive material than level 1. Plus, you can only import it from Brazil or India. It comes with a ¾ inch thickness. Due to the costly nature of this granite grade, we advise that you use a sintered (metal bonded) diamond core drill as you may be looking to have a nice finish. The sintered (metal-bonded) diamond core drill functions well in this regard.

• Top-Grade Granite 

Level 3+: This level if granite has more than three levels hence the “+” sign. They usually go up to seven levels if you’re looking to use them as countertops. The grade 3+ granite features a more exquisite design and colour. You can also cut them into ¾ inch slabs. Plus, interior builders use them to design Aqua kitchen and numerous bath designs. As similar to the level 2 grade, a sintered (metal-bonded) diamond core drill will equally play a significant role here, why? Well, it’s because the sintered diamond core drill gives an excellent finish with minimal loss of material. The Level 3+ granite is a high-priced material in the granite market, and as such, you can afford a maximum waste of it.

Knowing the grade

level of granite that you’re dealing with helps you to select a compatible granite core drill bit. You should also understand that the surfaces of these granite levels differ in smoothness. The Level 3+ comes with a more smoothened surface.

2. Never use an oversized core bit.

It isn’t just enough to select a diamond core drill for your granite project; you should also be wary of the hole size you’re looking to drill. Different projects feature different hole sizes, and this should influence your drill bit selection. Choosing an oversized drill bit can adversely affect your project, and we suppose you don’t want that. In this same vein, you should also check the specifications of the granite drill bit you’re looking to purchase, as this will give you an idea of the holes sizes the drill can make.

A heavy-duty drill bit
Figure 2 – A heavy-duty drill bit

3. There are two different types of granite drilling.

You can drill granite slabs using two primary methods. These two significant methods are dry coring and wet coring. Both systems come with their distinct advantages and disadvantages, and we will be discussing them –

Drilling through a granite rock
Figure 3 – Drilling through a granite rock

Dry coring 

Dry coring is when you drill a hole without the use of water in the drilling process. It is faster; however, it poses a threat to the bit as the drill might generate enough heat and cause it to melt. It also jeopardizes the granite drilling project as the surface of the granite slab might crack from too much friction. You can use this drilling process to drill holes in granite, granite countertops, and tiles.

• Wet coring

In wet coring, you use water in the drilling process. Water keeps the temperature of the granite surface and your granite core drill bit chilly, and invariably lessens the risk of any damage. This drilling method takes more time, and you will have to take care of a messy workspace. However, you get to safeguard your tool as well as your granite material.
In this regard, endeavour to go for diamond core drills that come with coolants or ensure that your drill bit is water-friendly.

4. Drill bits are best used only for granite drilling projects.

If you happen to be a granite drilling specialist, then you will direly need a granite drill bit that can serve you for long. There are several drill bits in the market space. However, we advise that you purchase diamond core drill bits as they tend to be the most durable core bits out there. Plus, diamond happens to be the most challenging material on earth. Furthermore, you need a drill bit that can match the energy coming from your RPM; a less-powerful drill bit might not do the job.

Drilling a granite rock with a metal core drill bit
Figure 4 – Drilling a granite rock with a metal core drill bit

For your granite drill bit to last, we advise that you use it for your granite drilling projects alone as using it to drill other materials might wear it out faster, and it may not wear evenly. What does this mean? Using one drill bit to train different materials causes the drill bit to wear unequally, which can jeopardize whatever drilling project you are working on. However, if you use it for a particular material, there is a high tendency that your drill bit will wear equally, allowing it to remain useful for a long time.

5. The speed factors

Speed has always been a significant factor when it comes to drilling, and as such, masons tend to select HSS (High Speed-Steel) tools for their projects. But when it comes to granite drilling, you should choose a tool that strikes a balance between speed and efficiency. As we stated earlier, too much speed can cause friction, which can invariably ruin your project.

A drill bit in fast motion
Figure 5 – A drill bit in fast motion

Also, you should select the granite core drill bits that match the RPM of whatever driller you’re looking to purchase. HSS drills tend to break when the friction becomes too much, and this isn’t good as it makes them less durable. Diamond core drill bits are strong enough to match the RPM of most drilling machines. In this regard, we advise that you purchase diamond core drill bits as they can match most speed levels.

6. Whether it needs finishing

If you’re looking to drill granite, then one aspect you should take seriously is the finishing. This finishing also influences your choice of a drill bit. Builders use granites to design and build many wares ranging from kitchen slabs, floor and wall tiles, bathtubs, and the likes. Some granite core drills finish products very nicely. Some drill bits don’t core drill bits don’t have this feature, why?

Well, diamond core drills come in different shapes and sizes, as you can use them to drill holes for various purposes. These purposes range from wiring, drilling for water, pipe installation, and the likes. So, if you are training your granite material for any of these purposes, then you can afford to pay less attention to the finishing. However, if you’re looking to have a smooth finish, then you should choose the right the core drill bit, which would invariably give you an excellent finish.

If you’re looking to purchase diamond drill bits that give smooth finishes, then NC Cutting Tools are your go-to manufacturers for such tools.

Frequently asked questions

There are numerous questions masons or handymen might have, and we will be reviewing some of them –

1. What are the available granite drill bits?

There are several granite drill bits available in the market ranging from auger drill bits, corkscrew drill bits, spade-like drill bits, and the likes. You can use these drill bits for different drilling purposes. Depending on your granite project and what you’re looking to achieve, you can pick from the available selection in the market. You will find a variety of core drill bits for granite at NCCutting Tools.

2. Can I use a granite drill bit on other materials?

Granite drill bits are usually strong, and as such, you can use them on other hard materials. However, using your granite drill bits on other materials tend to make the drill bits wear quickly. We advise that you use a particular drill bit for your granite drilling project, as this will make it durable.

3. Where can I get the best granite drill bit?

There are numerous granite drill bits available in the market. However, we recommend that you get your granite drill bits from NCCutting Tools as they are a reputable manufacturing diamond tool company. You can look them up on Google and check out some of the reviews and testimonies from their customers.

Final thoughts

By now, you should know the factors to consider when selecting or purchasing a granite drill bit for your project. These tips would go a long way in ensuring that you don’t make mistakes when purchasing granite drill bits.

We also recommend that you purchase your granite core drill bits and other diamond cutting tools from NCCutting Tools as they have a reputation for manufacturing topnotch tools.

Diamond Tile Drill Bit–5 Facts About the Diamond Tile Drill Bit

A handyman drilling a tiled wall

The diamond tile drill bit is an essential tool for drilling hard surfaces. Drilling holes in tiles can be somewhat tricky as you have to employ absolute caution as well as using the right diamond drill. You should also understand that the two common different types of tiles are – ceramic tiles and porcelain tiles. Porcelain tiles happen to be the hardest to drill, plus most of them come with high silica content, which makes them denser than ceramic tiles.

Not familiar with diamond tile drill bits? Here, we will examine some interesting and unusual facts about these essential tools.

Figure 1 – A handyman drilling a tiled wall
A handyman drilling a tiled wall

Chapter 1. Facts about Diamond Tile Drill Bits

If you’re looking to purchase a diamond tile drill bit, there are a few facts you would have to intimate yourself with, and we are going to be discussing some of these facts –

1. One size doesn’t fit all.

There are different sizes of diamond drill bits. The standard sizes you are likely to find are – 1mm – 3mm, 3.5mm – 60mm, and larger. Now, your tile sizes should influence your choice of drill bits. However, small diamond drill bits tend to last longer than small diamond core drills, but they take longer to drill holes. Plus, their robust nature allows them to penetrate dense materials such as porcelain tiles as well as other hard materials.

Small core diamond drill bits, on the other hand, drill holes faster, but they don’t last long due to their small surface area. In all, diamond drills are your best bet when it comes to drilling tiles. As a regular user of diamond drill bits, we recommend that you have both the small diamond drill bits and the small diamond core drills, as both tools can come in handy when drilling dense materials like tiles.

Squarehead drill bits
Figure 2 – Squarehead drill bits

2. You need square head bits.

Most of the time, masons and handymen tend to drill square holes in wall tiles as they need to affix anchors or holds for bathroom items. This recurring phenomenal has only gone further to necessitate square head bits. Squarehead bits should be a necessary part of your tile drilling process as the chances that you would need them are quite high. You can also use square head bits to drill rectangular-shaped holes as they can function well in this regard.

So, when next you’re prepping for a tile drilling project, endeavour to add square head bit drills as part of your drilling tools.

A mason drilling a tile
Figure 3 – A mason drilling a tile

3. The lifespan reduces as the coating wears off.

As we discussed earlier, small core diamond drills are fast in penetrating porcelain tiles, but this speed causes the dill tip/bit to wear off quickly, which is quite familiar with drill bits. In this regard, we recommend that you choose your tools wisely. Tiles aren’t too forgiving as you can shatter or scratch them easily. This sole factor is a massive reminder that you shouldn’t use second-hand drill bits for your tile-drilling project or any drill bit for dense materials.

There are diamond tile drill bits available on the market, and we recommend that you use them for drilling dense materials like tiles. We recommend diamond drill bits because they are hard enough. You should know that making a mistake can be quite costly when training porcelain or ceramic tiles. On the good side, diamond drill bits tend to wear evenly. With this, you can still drill a perfectly straight hole without the bit slipping away from the aimed spot. Porcelain tiles usually have a glazed surface due to their high silica content.

4. Drilling at maximum speed causes breakages.

While you may find it tempting to fire up your drill while you’re attempting to break through the glazy surface of your tiles, you should know that this is a sure way to ruin your project, how? Drilling at maximum speed will overheat your drill bit and cause vibrations that will probably crack the tile. Yes, the glazy surface of your tiles can inspire you to exert intense pressure, but you have to employ absolute caution here.

We advise that you start with a low speed, applying calculated pressure until you have penetrated the glazy surface. Once you have bored through the glaze, then you can gradually increase your speed cautiously. Once you bore through the tile and hit the wall, endeavour to reduce your rate in order not to blow the wall apart and cause your wall anchor not to hold proper.

Drilling safety gear kits
Figure 4 – Drilling safety gear kits

5. Working with diamond tile drill Bits requires extra consciousness

Drilling tiles come with some level of risks, and as such, you ensure that you kit yourself with protective gear. Some of these protective kits include – safety goggles, dust masks, safety gloves, and the likes. Wearing safety goggles will keep fragments or chips of tiles from flying into your eyes during drilling. The dust mask will also keep you from inhaling tile-dust.

Generally, diamond tile drill bits are high-speed drills, and this sole factor can cause your drill bit to overheat. To prevent your drill bit from overheating, we advise that you have a damp sponge close by. Dabbing your drill bit with a wet sponge will prevent your drill bit from overheating.

Alternatively, you can choose to hold the wet sponge beneath your drill bit while drilling. It will prevent it from overheating as well as catch any dust or debris resulting from the intense drilling. If you’re employing this method, you should be extremely cautious as you won’t want to expose the rotor part of your drill to water.

Chapter 2. Where you can get reliable diamond tile drill bits

Diamond drill bits for tiles are quite specific, and we know that their reliability depends on their manufacturers. If you’re looking to get topnotch tools for your tile-drilling projects, we recommend that you get them from NC Cutting Tools as they are quite innovative in their tool manufacturing.

Also, they are quite multi-functional. It invariably means that you can use them on diverse materials. You can visit NC Cutting Tools to purchase your reliable diamond cutting tools.

Drilling a tiled floor
Figure 5 – Drilling a tiled floor

Chapter 3. Frequently asked questions

Well, most of us might have one or two questions regarding diamond tile drill bits. We will be addressing these questions accordingly –

Can I use the same diamond tile drill for all sizes?

Tiles are quite tricky, and most times, require different drill bits. The density and size of your tiles should influence your choice of drill bits. If you’re on a low budget, you can use a universal diamond tile drill bit for your tile projects. However, you may need to support your drilling with some equipment that will hold your drill bit in place. Most times, support-tools or equipment come as part of the package in new drill bits.

Can I use diamond tile drill bits for other materials?

Any diamond drill bit that can drill porcelain tiles successfully can pretty much drill similar dense materials. Diamond drill bit for tiles also do well with glass, ceramic, concrete, and other hard materials. So yes, you can use your diamond tile drill bit on other dense materials.

However, you should be wary of overworking your drill bit and eventually causing it to wear off. Tiles are tricky materials, and they don’t give you chances to second-guess. We advise that you have a specific diamond drill bit for your tile projects, as this reduces the risk of shattering or cracking your tile.

Where can I get the best diamond tile drill bit?

Your diamond tile drill bit is as good as its manufacturer. In this regard, we recommend that you get your diamond tile drill bits from NC Cutting Tools as they have a reputation for manufacturing a range of topnotch diamond cutting tools. You can use NC Cutting Tools for a variety of projects. If you’re looking to indulge in any construction of any sort, then you will do well to get your diamond cutting tools from NC Cutting Tools.

Final thoughts

Drilling tiles is quite a sensitive project that requires absolute caution. You should understand that your safety matters too, and you can only ensure this by selecting your drill bits correctly. There are a host of factors to consider when choosing your drill bits. These factors play a huge role in ensuring your safety as well as the successful completion of the project.

While you employ absolute safety precaution, you should also purchase reliable tools. In this regard, we recommend NC Cutting Tools. Why? It is because they have a reputation for manufacturing the best tools on the market. Feel free to look this up as you’re more than welcome to convince yourself. You’re likely to find a handful of testimonies from other users of NC Cutting Tools. Join the drilling team by filling your toolbox with NC Cutting Tools.

Diamond Saw Blades for Cutting Marble: 4 Things to Know

Diamond Saw blade cutting marble

Do you want to cut marble? Use a diamond saw blades. Along with all the fanciful decorative use of diamonds, you must also know that diamonds are one of the strongest mineral resources around. It would surprise you to know that only a minimal percentage of the world’s entire diamond is on necklaces and watches. Most of the diamonds are in major industries today used for making precise and neat cuts and finishes, especially for marbles. This article will describe four things you should know when cutting marbles with diamond saw blades.

Diamond Saw blade cutting marble
Figure 1: Diamond Saw blade cutting marble

1.Choosing the right diamond saw blade.

Just like many other professionals, you must have come across different materials that you need to cut. Finding the perfect blade to give you the perfect cut and still be efficient is the dream of any professional. In this case, however, you need to cut marble, which is a type of stone. In this section, therefore, we are going to examine how to go about choosing the right diamond saw blade.

Type of Cut

There are two types of cuts you can carry out with the diamond saw blade, namely;

⦁ Dry cutting: this type of cutting is common among users of handheld saws, and are mostly used to cut stone and concrete materials. They are explicitly applicable in areas where you are not allowed to use water.

Dry Cutting of Marble
Figure 2: Dry Cutting of Marble

⦁ Wet cutting: this type of cutting is somewhat more advantageous for most users as the water increases the service life of the blade. This method of cutting is also applicable for cutting ceramic, concrete, and stone.

NOTE: As a rule of thumb, you should use the continuous rim diamond blades for wet cutting, while the other sintered diamond blades can use for dry. Keep in mind that the wet cutting of marble increases the longevity of diamond saw blades.

Wet Cutting of marble
Figure 3: Wet Cutting of marble

Type of material to cut

When it comes to choosing the right blade, you must know what you are cutting. Manufacturers produce blades to attain maximum efficiency both in Speed and in blade life. Hitherto, you must know the characteristics of the material you are cutting as the manufacturers will design the blade with relation to these characteristics.

Marble is composed of the mineral calcite and sparse content of other minerals. Hence, you must use a specialized blade for cutting marble. As a rule of thumb, the blades should be vacuum brazed. Vacuum brazing of saw blades is especially essential because they allow the blades to cut a wide variety of material, including marble.

Blade Quality

You are mot likely to find different quality ranges of your diamond saw blade. These blades will differ in diamond content and price range. It then poses you with the challenge of what is more efficient, which means to give the optimal performance and, at the same time, remain economically valid.

Vacuum brazed diamond saw blades are quite efficient for cutting marbles. These blades have prolonged longevity because they don’t get stuck in the marble-like other saw blades

2.Tips for cutting marble

Cutting marble is a bit challenging, and that’s why this section of this article will look to provide you with the necessary tips for cutting marble.

⦁ Marble position:

Now, the marble must always align with the right side(Cutting Side) of the saw blade. Failure to put this into consideration will lead to wrong or short cuts of the blade. More so, you must ensure you are using the right side of the blade and a way to ensure this is to test cut on a scrap piece. Also, while cutting the marble tends to move, you must then use a clamp always to keep the marble in position

⦁ Cut Slowly:

a golden rule in cutting marble is always to cut slowly to prevent cracks and breakage. Marble will most likely chip if you opt to cut through quickly, so most professionals advise that you don’t for the process. Instead, you move at the pace of the machine. An excellent way to know you are cutting too fast and need to slow down is if when you are cutting, you begin to see smoke.

⦁ Cut with the finished side facing the foam:

one of the critical aspects of setting up your marble and saw is to have a foam underneath the marble. This foam will help keep your marble flat and protect it from scratches. Hitherto, making a small cut on the back of your marble with the finished surface facing the foam will help keep it from chipping.

⦁ Cutting thick or thin slabs:

for cutting thick slabs, you will have to flip the finished surface over to continue cutting. However, when cutting very thin slabs, you don’t need to flip your finished side over to make a complete cut through the slab.

⦁ Clean Finishing:

after cutting the marble with your diamond saw blade, you must ensure to perform a clean finishing over rough patches. You can use wet or dry sandpaper to carry out the Finishing. However, never use coarse sandpaper as it can scratch the marble. You can also use the electric angle grinder for an automatic alternative to the sandpaper for finishing.

Using Grinder for finishing
Figure 4: Using Grinder for finishing

3. Effects of Diamond saw blade on the marble.

Wear resistance: a diamond blade is an efficient tool that has generates little or no waste. The low waste removal of the diamond saw blade makes it resist wear longer than other contemporary blades. This feature allows the blade to cut for longer while maintaining the same cut depth.

Smooth Cut: It allows the blade to cut smoother due to the presence of its configuration. The blade’s gullet helps to reduce chipping or breaking of the marble due to the vibration of the saw. The blade’s structural design gives you better control of the level of smoothness you can cut on the marble.

Precision and Speed: the diamond blade’s structural makeup allows you to maintain the accuracy of the blade. The precision level of the blade helps you cut faster and, at the same time, prevent loss of material.

4. Safety Precautions in Cutting Marble

Cutting of any sort can be hazardous if done recklessly, and cutting marble is not any different. It then poses a responsibility on you to know the safety practices to ensure to prevent any form of fatality. Here are some safety practices that can sure protect you when cutting:

⦁ Using protective gloves:

Both the freshly cut marble and the diamond saw can be sharp enough to cut your hands. To reduce the risk of cutting yourself, you must look to get gloves of thick material that will protect your hands.

⦁ Using protective googles:

Small fragments of marble can sometimes chip off when cutting and fly towards your eye. To prevent any form of eye injuries, you must wear protective goggles that cover the entire eye.

⦁ Avoid loose clothing or long hair :

As a general practice in the workshop, it is expected that you desist from having any loose object on you. The reason for this is quite simple as loose objects like your hair, or even a tie can get cut up in the saw, which can lead to a fatality.

⦁ Use protective boots:

There is always a tendency to have things dropped on your feet, whether its a slab or the blade. Having protective boots with impact resistance will prevent any real damage.

⦁ Use ear muffs:

Cutting marble with your diamond saw blade can be very loud and sometimes above human decibel range. Using ear muffs in cases like this will prevent any form of deafness or disorientation.

⦁ Turn off the machine and clean workspace:

It is vital always to turn off your machine whenever it is not in use. It goes for whether you are done with a job or cutting multiple slabs. Another necessary safety practice is cleaning after each appointment. Clean surfaces with rags to keep pieces of equipment in good shape.

Protective goggles against kickbacks
Figure 5: Protective goggles against kickbacks


Using the diamond blade to cut marble is a well-known practice that is popular among professionals, skilled users, and unskilled users also. Marble is a useful stone that has multiple uses in the world today. As popular as cutting marble is among users, it remains somewhat difficult to cut. This article, however, looks to enlighten on what the entire process of using a diamond saw blade to cut marble entails.

So, as you continue to look out for a better understanding of how the diamond blade cuts marble, look no further, NCCuttingtools has got you covered. Click here for a video with up-to-date information about cutting your marble, and how to make the best choice.

7 Tips for Selecting Diamond Drill Bits for Drilling Stone or Glass

Drilling glass – a wet cutting technique

Drilling glass – a wet cutting technique
Caption: Drilling glass – a wet cutting technique

Have you ever tried drilling through stone or glass? These are hard materials, and they present a challenge, even if you are an experienced operator. You need to get everything right to secure adequate results. In this article, we will be discussing how to select a diamond drill bits for glass and stone. These are the tips you should consider to ensure you found an appropriate bit for the job.

Chapter 1. Diamond Drill Bits–The Importance of a Soft Bond

High-quality diamond core bit
Caption: High-quality diamond core bit

The good news is that you got the dilemma about the material out of the way. Diamond is surely the best drill bit for hard stone. The material is strong, and it is not easy to break. The chances are it will serve you for a long time.

If you want to ensure that, you should also consider the hardness of the material you are drilling. Based on that, you need to choose the bond for the drill bit. Now, as you might assume, the stone is considered a hard material. The hardness of the application is in an inverse relationship to the hardness of the drill bit.

That indicates you will need a soft bond for stone materials. The reason why soft bonds are suitable is that they will ensure easier drilling. They will also secure the optimal durability of the tool. If you are a professional, a reliable drill bit is essential during operation. You want a tool to rely on for long, and not going through the hassle of changing it every time.

As for the glass, you can also consider drill bits with a soft bond. However, glass is not as hard as a stone (although it depends on the type), which means even a harder bond might do. On the other hand, if you are looking for ultimate versatility, a soft bond will be compatible with both glass and stone.

Chapter 2. Your Diamond Drill Bits Should Be Compatible with the Tool

A drill bit used for drilling stone
Caption: A drill bit used for drilling stone

There is no point in purchasing a drill bit for stone materials if you can’t fit it into your tool. that is why you need to ensure these two are compatible.

You want to start by using the right tool for your stone drill bit. The best choice is a specialized diamond drill, but it is a significant investment. That is why DIY enthusiasts might not own it. The good news is that a concrete drill will do the job, and you can also use a masonry tool. These are all suitable choices for drilling stone and glass. Although you can try a hammer drill, the experts indicate it is not an adequate selection.

The next thing to consider is whether the drill bit can fit into the tool. Let’s get one thing out of the way first – the brand doesn’t have anything to do with this. That means you are not obliged to purchase the drill bits that belong to your tool’s brand. Most manufacturers make versatile drill bits that fit various tools.

You want to check your drill’s shank. The idea is to confirm that everything will fit nicely, and you can operate the tool effortlessly. As long as that is confirmed, you don’t have to worry about the brand. However, stick to reputable manufacturers to ensure you get an original diamond drill bit for glass and stone.

If you pick the right tool, you can cut stone and glass in various situations. For example, nothing can stop you from drilling a hole in a glass aquarium.

Chapter 3.Durability Depends on the Frequency of Using the Bit

A stone drill bit close up
Caption: A stone drill bit close up

Here is something you might have assumed already. Now, diamond core drill bits are characteristic for their strength and durability. They should last longer than steel bits, and they are more capable of cutting hard applications.

However, even the durability of diamond drill bits is not eternal. Their lifespan depends on how often you use the bit. If you are a DIY enthusiast that occasionally drills a couple of holes, the tool could last for years. But if you are professional drilling holes daily, the durability might be shorter.

The good news is that a high-quality diamond drill bit should be reliable. These bits are durable and provide consistent results. That makes them a smart investment for every user out there.

Chapter 4. Diamond Drill Bits–Pick the Right Size

Choosing the right drill bit size for drilling
Caption: Choosing the right drill bit size for drilling

The next consideration when choosing a stone drill bit is its size. The crucial factor is that these tools vary significantly. You can pick a bit that is as small as 3mm but also go with a large unit that is over 20m.

Although the standard might be in the range from 8 to 12mm, the only relevant thing when selecting the size is your requirements. What is the hole size you need in the application? Are you looking to make a small hole, or you want to drill a large one? That is what should dictate your size selection.

Apart from the size, consider the length of the bit, too. The majority of units designed for masonry work should be at around 300-400mm. The experts do not recommend going lower than that. What if the stone that you are cutting is large and you need a deep hole? That is where you will require a long drill bit. If you don’t think 400mm is long enough, it is also possible to order longer units. The only thing to ensure is that everything fits your requirements.

Chapter 5.Choose the Desired Shape

Pick the shape of the diamond drill bit correctly
Caption: Pick the shape of the diamond drill bit correctly

The shape of the drill is another factor that will affect the type of hole you are making. The basic two forms of drill bits are spear and circle.

Now, if you are looking for a hole that will resemble an ideal circle, go with that bit shape. Many consider these the standard type, but that is a matter of personal preference.

As an alternative to circle-shaped design, you can go with bits that have a spear from. These units have a clear drilling point, and they might enable higher accuracy. That is why the experts recommend them when looking to drill a hole with the ultimate precision.

Chapter 6.Purchase Multiple Drill Bits at Once

Purchasing multiple drill bits at once increases versatility
Caption: Purchasing multiple drill bits at once increases versatility

It is a rare situation that you purchase a single diamond drill bit for stone or glass. Most manufacturers will sell bits in packs, and that is for a good reason. The users benefit from purchasing multiple drill bits at once.

That is because of the drilling techniques used, as well as work requirements. A method that most operators stick to includes using a smaller diamond drill bit for glass first. It is easier to mark the spot and initiate the hole drilling process with a smaller bit. Once you start drilling into the material and leave a mark, it is time to move to a bigger drill bit of the desired size. You continue drilling with that bit until you get an optimal size of the hole. That way, you increase the accuracy of the drilling process.

Additionally, buying multiple drill bits means you don’t have to worry about another purchase soon. Even if you don’t break the bit, it will eventually become dull. That is when a replacement is mandatory, or you will compromise the quality of work and risk ruining the application.

The number of drill bits in a pack can vary. Pick based on your needs and how frequently you operate the tool. We recommend at least four, but you can increase the number if you change sizes often.

Chapter 7.You Don’t Need a Lot of Speed

A person drills a hole in a glass bottle
Caption: A person drills a hole in a glass bottle

Stone and glass are not the easiest materials to work with, which is why you need to be patient. If you are looking for optimal results, it is required to have patience when drilling a hole. It is critical to consider you don’t want to work at high speeds. That increases the risk of ruining the material or the tool.

Operating at a low speed will give you the required steadiness and precision. If you want to make things easier, you can use masking tape. Those natural drilling stones should consider steering clear of cutting close to imperfections and edges. Finally, you can consider wet cutting as an option to avoid overheating issues and ensure better results.

Final Thoughts

Drilling glass and stone is a demanding job. You need to be careful and work with caution, as well as use suitable tools. When it comes to drilling bits, you can’t go wrong with those that have a diamond core.

Diamond drill bits are strong, durable, and suitable for hard applications. If you are looking for high-quality bits, you can order them from NCCuttingTools.

NCCuttingTools is a company that has been in business for over 20 years. They utilize modern equipment and gather knowledgeable personnel. In this way, the manufacturer ensures that each meets the requirements of customers.

From small to large-scale orders, the company is ready to fulfill all your expectations. Additionally, the delivery time is short, which means you will get your tools as quickly as possible. Contact NCCuttingTools to place your order and discover the company’s affordable rates!

Circular Saw–7 Tips on Cutting Metal With A Circular Saw

A new circular saw showing metal blade

Since the advent of saws, the circular saw has stood out as the first choice when it comes to cutting metals. Users have attributed this to many reasons, such as its portability, ease of handling, and high efficiency. Advancement in technology saw the introduction of many other modifications to the design and use of the circular saws. It is for these reasons that we consider it necessary to enlighten you on the use of metal cutting circular saw. We believe by doing this; then you can get the best out of your circular saw from start to finish.

Fig 1: A new circular saw showing metal blade.
A new circular saw showing metal blade

1.Choose the right saw blade.

Metals come with various properties, but among those prominent for daily needs are mild steel, stainless steel, iron, and aluminum. Therefore, in cutting these types of metals, not just any kind of saw blade can be used. Furthermore, these blades will also vary based on the thickness of metal, strength, tooth design, the direction of cut, etc.

Blades vary for ferrous and non-ferrous metal cutting. Different grades of metal saw blades to cater to a wide range of metals are in the market. HSS metal saw and Carbide-tipped metal blade are the two major categories of metal saw blades as of today. Metals such as aluminum are known to be fragile in that wise cutting them requires a special metal saw blades.

Metal saw blades with fewer/ lower teeth cut thicker metals, while thinner metals require blades with more teeth. What this means is that the saw blades appropriate for cutting iron rods would slightly differ from that of the iron sheet. It will, in turn, completely different from that used to cut aluminum sheet or stainless steel. Depending on the thickness of the ferrous or non-ferrous metal as well. Use a metal blade of about 60-100 teeth for non-ferrous metals. Ferrous metals would require a 30-80 teeth metal blade.

For example, you should consider using ten teeth per inch saw blade for sheet metals less than 1/6-inch thickness. For materials up to 1/8-inch thickness, then a 12 tooth per inch saw blade is perfect. As the thickness of the metal increase, so should the tooth per inch of the metal saw blade reduce. Even though the carbide-tipped saw blades are more expensive, they make up for it with their exceptional durability. Carbide-tipped saw blade have up to 10 times stronger than regular steel saw blades. Asides this, they also give you a very smooth and accurate cut.

In simple terms, choosing the right blade is as good as getting the job done already! The right blades should be powerful enough to cut through seamlessly and not get stuck in the workpiece.

Fig.2: Carbide-tipped metal saw blade.
Carbide-tipped metal saw blade

2.Lubricate the saw blade for protection

Knowing fully well that any metal cutting process generates a substantial amount of heat due to friction. What this mThis prompts the necessity for a lubricant to reduce heat at the interface of cutting. It is a common phenomenon for metal cutting circular saw blade experience overheating if not properly lubricated. Lubrication does a lot of good to ease your cutting task by ensuring the following:

a.Reducing the risk of injury due to blade grabbing workpiece.

b.Prolong the tips of the carbide-tipped saw blades by helping to dissipate heat.

c.Minimize possible friction between the saw blade and workpiece.

d.It also helps to wash debris off the surface of the workpiece.

You can lubricate using a special metal cutting lubricant, which does not, in any way, attack or harms the metal workpiece. Instead, it makes it luster and gives off a smooth and clean cut. Finally, with a saw blade wax stick, you can apply the lubricant along the line of cut intermittently.

Fig.3: Lubrication of metal blade while cutting.
Lubrication of metal blade while cutting

3.Use appropriate blade depth.

The general rule of thumb is that you never allow your blade to go ¼-inch (6mm) beyond the workpiece thickness. It means that regardless of your workpiece thickness, the blade must be pre-set ¼-inch plus its thickness. The design of circular saws with the ability to adjust its blade depth has made it stand out among others.

Bear in mind that you must have initially set the recommended depth before putting on your circular saw. Failure to set the depth to standard can lead to binding, kickbacks, and safety issues arising. Generally, blades should barely stick beyond the workpiece thickness and cut more efficiently when a properly set this way.

4.Be Mindful of saw and blade’s speed.

The whole point of being mindful of speed is because you would want to use a blade within the limit of your circular saw. This act helps to ensure that both your circular saw and metal blade are kept healthy at all times. Usually, 5000 revolutions per minute (rpm) at no load is the average speed at which metal can cut using a circular saw.

Non-Ferrous metal such as aluminum, brass, and copper, the ideal speed is about 3000 to 6000 rpm. Ferrous metals such as pipes cast iron U-channels are cut with speed about 1800 to 3500 rpm.

Once you flout this rule, your blades get overheated, your power circular saw runs idle, or you get badly injured. Often, manufacturers indicate the safe and maximum rpm of blades on its packaging. Hence, for any combination of blade and saw, the blade’s rpm should remain greater, and the circular saw remains lower. With this, you are sure you cannot go above the limit and can keep working safely on your project.

Another perspective to choosing the right speed is that stability is sure when handling the circular saw at this speed. Never force the blade through the workpiece; neither should you run too fast through your workpiece. Remember, slow and steady wins the race.

Fig. 4: Close-up image of the metal blade running at high speed.
Close-up image of the metal blade running at high speed

5.Safely Install the blade on the power saw.

Just like table saws, the metal blades rest upon an arbor. However, due to the nature of the circular saw, one must pay attention to details as mistakes could cost a fortune. Unlike the table saw, circular saws could cause more damage if handled carelessly. Ultimately, ensure all the nuts, bolts, and attachments all align in the right place. Your ability to correctly assemble the blade remains pivotal to the success of your job. You can check out your circular saw’s manual for more information.

6.Secure and Position the workpiece appropriately.

In using the circular saw, there is a need to position not only the workpiece but yourself as well properly. Positioning yourself is important as this puts you at absolute ease when working, and you can deliver a good cut. Asides from yourself, the placement of your workpiece is pertinent to the success of your cutting.

There is a dire need to properly secure the workpiece with clamps, vices, or fences as appropriate at all times. Do not ever make the mistake of not doing this before any cutting operation. Also, you would do yourself a lot of good by keeping to all procedures guiding pre-cutting operations and preparations.

By obeying this rule, you can keep both hands on top of the circular saw when cutting.

7.Observe all safety tips

At all times and situations, safety remains key. It is, therefore, integral to keep all safety tips in mind when working. Below are two major tips to ensure you work safely:

a.Watch out for metal chips

Never underestimate the havoc metal chips causes. They are not only sharp and can cut one’s skin, but they are also pretty hot when cutting is on-going. In recent time, circular saws have chips collector attached to them. Only purchase a circular saw that has this essential accessory. Warn bystanders around your work environment to tread carefully.

b.Wear all proper safety gears

For this reason, highlighted above, you need to cover your body properly with gloves and long-sleeves. Wear safety glasses or face shields as well as hearing protection.

In your best interest, you must always carry out routine maintenance on your circular saw to always keep it in shape. With this, you can avoid disappointment and always stay ready to work.

However, some people advise that wearing a glove could do more harm than good. These set of people believe gloves could get stuck on the teeth during operation and draw you in.

Fig. 5: Picture showing a man on safety gear while cutting metal.
Picture showing a man on safety gear while cutting metal


It’s just not about having a circular saw for metal cutting; it is about using it effectively. We are confident that you have gained a lot. Endeavor always to use the specific circular saw and blade for the right task. In any case, where you find yourself still facing difficulties do well to watch this video. NCCuttintools remains positioned to provide you with guidance about appropriate cutting tools to suit your need at pocket-friendly prices.

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